LEDs – Provide a quick visual notification of the status of the server and of some of the FRUs. See Detecting Faults Using LEDs.
Oracle ILOM firmware – This system firmware runs on the service processor. In addition to providing the interface between the hardware and OS, Oracle ILOM also tracks and reports the health of key server components. Oracle ILOM works closely with POST and Oracle Solaris Operating System (Oracle Solaris OS) Predictive Self-Healing technology to keep the system up and running even when there is a faulty component. See Oracle ILOM Overview.
Power-on self-test (POST) – POST performs diagnostics on system components upon system reset to ensure the integrity of those components. POST is configurable and works with Oracle ILOM to take faulty components offline if needed. See POST Fault Management Overview.
Oracle Solaris OS Predictive Self-Healing (PSH) – This technology continuously monitors the health of the processor and memory, and works with Oracle ILOM to take a faulty component offline if needed. The Predictive Self-Healing technology enables systems to accurately predict component failures and mitigate many serious problems before they occur. See Identifying Faults Detected by PSH.
Log files and console messages – Oracle Solaris OS log files and Oracle ILOM system event log can be accessed and displayed on the device of your choice. For more information, see Detecting Faults (Oracle Solaris OS Files and Commands) and Detecting Faults (Oracle ILOM Event Log).
Oracle VTS software – The Oracle VTS software exercises the system, provides hardware validation, and discloses possible faulty components with recommendations for repair. See About Oracle VTS Software.
The LEDs, Oracle ILOM, Oracle Solaris OS PSH, and many of the log files and console messages are integrated. For example, a fault detected by the Oracle Solaris software displays the fault, logs it, and passes information to Oracle ILOM where it is logged. Depending on the fault, one or more LEDs might be illuminated.
See Diagnostic Flowchart Actions and for an approach for using the server diagnostics to identify a faulty field-replaceable unit (FRU). The diagnostics you use, and the order in which you use them, depend on the nature of the problem you are troubleshooting. So you might perform some actions and not others.
Before referring to the flowchart, perform some basic troubleshooting tasks:
Verify that the server was installed properly.
Visually inspect cables and power.
(Optional) Perform a reset of the server.
Sun SPARC Enterprise T5440 Server Installation and Setup Guide
Sun SPARC Enterprise T5440 Server Administration Guide